A captive fastener attachable to a panel along a fastener axis is provided. The captive fastener includes a fastener having a head portion and a shaft extending from the head portion and along the fastener axis. The captive fastener also includes a knob having a proximal end portion engaged to the head portion of the fastener and an annular portion extending radially around the fastener axis and the shaft of the fastener. A ferrule is associated with the knob, the ferrule defining an opening extending along the fastener axis and receiving the shaft of the fastener. The ferrule has a proximal end portion configured to prevent separation of the knob from the ferrule along the fastener axis and a distal end portion configured for engagement to the panel. A spring is positioned to bias the knob or the fastener proximally relative to the ferrule and to inhibit tilting of the knob or the fastener relative to the fastener axis. The proximal end portion of the ferrule having been positioned to be associated with the knob in an insertion direction along the fastener axis, and the head portion of the fastener having been inserted within the knob for engagement to the knob in the insertion direction. The engagement between the proximal portion of the knob and the head portion of the fastener is configured to resist axial movement of the knob relative to the fastener along the fastener axis, rotational movement of the knob relative to the fastener about the fastener axis, and pivotal movement of the knob relative to the fastener axis.

A fastener structure includes a fastener having a stem portion and at least one movement portion. The stem portion has a fastening section. The movement portion is formed on the stem portion and has a retaining section. With these arrangements, the retaining section of the movement portion can be detachably assembled to a first object and the fastening section can be then detachably assembled or fastened to a second object. In this way, at least two objects can be connected to and disconnected from one another in a quick and repeatable manner.

A grooved rotatably fastening structure includes, in top-to-bottom sequence, a head, a shaft connected to the head, and a fastening portion connected to the shaft. The fastening portion has a first groove and a second groove. The first groove is concavely disposed on a lateral surface of the fastening portion and extends upward from a bottom of the fastening portion. The second groove is concavely disposed on the lateral surface of the fastening portion and extends from the first groove transversely or obliquely. The first groove and the second groove are in communication. The rotatably fastening structure enables users to connect two objects together quickly without compromising the structural strength of the two objects and is applicable to thin objects.

A swivel nut assembly is configured to adaptively secure a first component to a second component. The swivel nut assembly includes a socket nut including a first portion having a first internal threading, and a second portion defining a swivel chamber. A swivel connector includes a ball having a first external threading. The swivel connector is moved into the swivel chamber via the first external threading threadably engaging the first internal threading to move the ball into the swivel chamber. The ball is rotationally captured within the swivel chamber after the ball is moved into the swivel chamber.

An arrangement includes a housing and a printed circuit board (PCB) arranged vertically above the housing. The housing includes: at least one protrusion attached to sidewalls and arranged on an outside of the housing at a lower end with at least one first through hole provided in the protrusion; holding devices each arranged inside a first through hole and/or between the PCB and the first through hole; and fastening elements configured to attach the housing to a heat sink or base plate. Each holding device is configured to clamp a corresponding fastening element such that the fastening elements are secured in defined positions, and to align each fastening element with a different first through hole. The PCB includes second through holes each arranged vertically above and aligned with a different fastening element. A diameter of each second through hole is less than the largest diameter of the respective fastening element.

A quick fastener by means of which at least a first and a second component are connectable to each other. The quick fastener includes a fastening bolt having a fastening thread of a first spiral direction, which is fastenable at the second component, and a compressible pretension element which is fastenable at the first component. The compressible pretension element includes a pretension thread at a radial inner side having a second spiral direction opposite to the first spiral direction, a hollow cylindrical thread element which is screwable with an outer thread at a radial outer side into the pretension thread of the pretension element having an inner thread at its radial inner side into which the fastening thread of the fastening bolt is screwable. At least a constructive rotation protection is provided between the hollow cylindrical thread element and the compressible pretension element. A production method for the quick fastener is further provided.

A panel-insert assembly including a panel and an insert, wherein the panel includes a core and a face sheet positioned over the core, wherein the face sheet defines an opening therein, and wherein the insert is positioned below the face sheet and includes a thread member engaged with the panel, the thread member extending in a first circumferential direction about the vertical axis.

A floating fastener mounting structure includes a mounting socket having a locating groove extending around the periphery and defined between a relatively smaller annular step and a relatively larger stop flange thereof, a metal panel member having a mounting through hole attached to the mounting socket and stopped above the stop flange and stamped by a stamping press to provide a riveting portion and to force the riveting portion to engage into the locating groove and to wrap about the stop flange of the mounting socket, a spring-loaded locking member axially slidably mounted in the mounting socket for detachably locking the metal panel member to an external metal panel member, and a cap member capped on a mounting head of the locking member and affixed to the mounting head during the operation of the stamping press to stamp the metal panel member. Affixing the mounting socket to the metal panel member by riveting greatly enhances the shearing strength of the floating fastener mounting structure.

An upper plate portion of a suspension member and a bottom plate portion of a bracket that is placed on an upper side thereof, and the like, as objects to be fastened, are sandwiched between a weld nut and an end surface on a vehicle upper side of a collar. A protruding portion that protrudes toward a bolt through-hole side of the bottom plate portion of the bracket is formed on an end portion on the vehicle upper side of the collar. The protruding portion is formed along an entire periphery around an axis of the collar. Also, a drainage groove that leads from the end surface on the vehicle upper side to an outer peripheral surface of the collar is formed in the collar.

A panel insert comprising an external body having an open end, said body having a central bore, a magnet received in said bore and having a smooth surface facing said open end of the body, said magnet being affixed to said body.